Thermal contact resistance with non-uniform interface pressures
This work considers the effect of roughness and waviness on interfacial pressure distributions and interfacial contact resistance. It is shown that for moderate roughness the contour area could be substantially different from the contour area calculated using the Hertzian theory. The model for press...
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| Format: | Technical Report |
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Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970]
2011
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| Online Access: | http://hdl.handle.net/1721.1/61461 |
| _version_ | 1811098458937884672 |
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| author | McMillan, Robert Mikic, B. B. |
| author2 | Massachusetts Institute of Technology. Division of Sponsored Research. |
| author_facet | Massachusetts Institute of Technology. Division of Sponsored Research. McMillan, Robert Mikic, B. B. |
| author_sort | McMillan, Robert |
| collection | MIT |
| description | This work considers the effect of roughness and waviness on interfacial pressure distributions and interfacial contact resistance. It is shown that for moderate roughness the contour area could be substantially different from the contour area calculated using the Hertzian theory. The model for pressure calculation assumes plastic deformation of surface irregularities and elastic deformation of a spherically wavy base. The calculations of pressure distributions cover the range of parameters of practical interest. Experimental contact resistance values have been determined and are compared with theoretical predictions. It was calculated that contact conductance for wavy surfaces can be increased for certain ranges of parameters by making surfaces rough. |
| first_indexed | 2024-09-23T17:15:29Z |
| format | Technical Report |
| id | mit-1721.1/61461 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:15:29Z |
| publishDate | 2011 |
| publisher | Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970] |
| record_format | dspace |
| spelling | mit-1721.1/614612019-04-10T18:06:08Z Thermal contact resistance with non-uniform interface pressures McMillan, Robert Mikic, B. B. Massachusetts Institute of Technology. Division of Sponsored Research. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Heat Transfer Laboratory. Thermal analysis. Surfaces (Technology) This work considers the effect of roughness and waviness on interfacial pressure distributions and interfacial contact resistance. It is shown that for moderate roughness the contour area could be substantially different from the contour area calculated using the Hertzian theory. The model for pressure calculation assumes plastic deformation of surface irregularities and elastic deformation of a spherically wavy base. The calculations of pressure distributions cover the range of parameters of practical interest. Experimental contact resistance values have been determined and are compared with theoretical predictions. It was calculated that contact conductance for wavy surfaces can be increased for certain ranges of parameters by making surfaces rough. NASA DSR Project 2011-03-04T23:30:55Z 2011-03-04T23:30:55Z 1970 Technical Report 14090021 http://hdl.handle.net/1721.1/61461 Technical report (Massachusetts Institute of Technology, Heat Transfer Laboratory) ; no. 70. 99 p application/pdf Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970] |
| spellingShingle | Thermal analysis. Surfaces (Technology) McMillan, Robert Mikic, B. B. Thermal contact resistance with non-uniform interface pressures |
| title | Thermal contact resistance with non-uniform interface pressures |
| title_full | Thermal contact resistance with non-uniform interface pressures |
| title_fullStr | Thermal contact resistance with non-uniform interface pressures |
| title_full_unstemmed | Thermal contact resistance with non-uniform interface pressures |
| title_short | Thermal contact resistance with non-uniform interface pressures |
| title_sort | thermal contact resistance with non uniform interface pressures |
| topic | Thermal analysis. Surfaces (Technology) |
| url | http://hdl.handle.net/1721.1/61461 |
| work_keys_str_mv | AT mcmillanrobert thermalcontactresistancewithnonuniforminterfacepressures AT mikicbb thermalcontactresistancewithnonuniforminterfacepressures |